I´m not sure what you mean by "GIT tumor". Would that be GIST tumor?. It has nothing to do with breast tumors, but it does make sense to me. And what are you looking for with regard to breast tumors?. Is it a discussion of the use of immunohistochemistry in distinguishing between benign and malignant breast tumors or is it the use of immunohistochemistry in the prognosticating malignant breast tumors?